# AMD Catalyst™ Accelerated Parallel Processing ("APP") technology There will now be two variants of the AMD Catalyst package available:1. AMD Catalyst (comparable to prior versions in features and components) –currently includes the Direct3D®, OpenGL®, display driver and AMDCatalyst Control Center components2. AMD Catalyst Accelerated Parallel Processing (“APP”) technology Edition –AMD Catalyst plus the OpenCL driver- Users can still obtain the individual AMD Catalyst components as well (which willalso include the OpenCL driver as well)

# Performance ImprovementsThe following performance improvements were observed with this release of AMDCatalyst 10.10:- Aliens vs. Predator™ DirectX 11 Benchmark* Performance increases up to 6% on ATI Radeon HD 5800 Series single andCrossFire* Performance increases up to 5% on ATI Radeon HD 5700 Series single andCrossFire* Performance increases up to 5% on ATI Radeon HD 5600 Series* Performance increases up to 5% on ATI Radeon HD 5500 Series* Performance increases up to 4% on ATI Radeon HD 5400 Series- BattleForge™* Performance increases up to 6% on ATI Radeon HD 5800 Series single andCrossFire configurations with anti-aliasing enabled* Performance increases up to 5% on ATI Radeon HD 5700 Series single andCrossFire configurations with anti-aliasing enabled- Crysis Warhead®* Performance increases up to 9% on Single ATI Radeon HD 5800 Series productswith anti-aliasing enabled- Far Cry™ 2* Performance increases up to 7% on Single ATI Radeon HD 5800 Series products- Metro 2033™* Performance increases up to 7% on ATI Radeon HD 5800 Series single andCrossFire configurations* Performance increases up to 8% on ATI Radeon HD 5700 Series single andCrossFire configurations* Performance increases up to 5% on ATI Radeon HD 5600 Series in DirectX 11and 10 modes* Performance increases up to 5% on ATI Radeon HD 5500 Series in DirectX 11and 10 modes* Performance increases up to 4% on ATI Radeon HD 5400 Series in DirectX 11and 10 modes- S.T.A.L.K.E.R.™ : Call of Pripyat Benchmark* Performance increases up to 7% on single ATI Radeon HD 5800 Series products- Unigine™ Heaven* Performance increases up to 9% on ATI Radeon HD 5800 Series single andCrossFire configurations with anti-aliasing enabled* Performance increases up to 8% on ATI Radeon HD 5700 Series single andCrossFire configurations with anti-aliasing enabled- World in Conflict™* Performance increases up to 9% on ATI Radeon HD 5600 Series* Performance increases up to 10% on ATI Radeon HD 5500 Series

# Resolved Known Issues for All Windows Operating SystemsThis section provides information on resolved known issues in this release of the AMD Catalyst software suite for Windows. These include:- Catalyst Control Center page will now report the correct video memory type

# Resolved Known Issues for the Windows 7 Operating SystemThis section provides information on resolved known issues in this release of the AMD Catalyst software suite for Windows 7. These include:* Screen no longer becomes static after changing resolution in "Just Cause 2™" with CrossFire enabled under Multi-GPU configuration* Secondary (Slave) GPU and Memory Clock values will now increase when D3Dsamples/games are running in fullscreen mode* The maximum support mode will now be properly displayed when the CRT isconnected via the DP-to-VGA dongle* Negative CrossFire scaling no longer experienced in "Need for Speed™: Shift 2" on the ATI Radeon™ HD 5870 card* Tearing corruption no longer visible in "Call of Duty®: Modern Warfare® 2" withCrossFire enabled* VGA display will now light up when hotplugged into the VGA port on a systembooted without any displays connected* Changing the HDMI™ display output to 1776x1000 through the operating system resolution setting no longer causes the refresh rate to default to 30Hz* Frame drops no longer visible during WinDVD® Blu-ray playback with displayresolution set to 25x16* Changes to HDMI display scaling are now retained after system reboot* System no longer displays blue screen during HDMI audio driver upgrade if existing version is not uninstalled prior to installation* Unwanted desktop experience no longer visible while viewing Blu-ray content on120 Hz displays

# Resolved Known Issues for the Windows Vista Operating SystemThis section provides information on resolved known issues in this release of the AMD Catalyst software suite for Windows Vista. These include:- Optimized and custom modes for 720p60, 1080p60 and 1080i30 are no longermissing for specific DVI displays- Display no longer turns black when rotated 90 or 270 degress with resolution set to 1080i30 and Aero® enabled